Moss Weather in September
Moss in September sees moderate temperatures, with highs around 18°C (64°F) and overnight lows of 9°C (48°F). Rainfall is fairly high at around 93 mm (3.7 in) on average, so pack waterproofs just in case.
Rainfall in Moss in September
Typically around 16 days of rainfall are expected, averaging 93 mm (3.7 in) for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Moss in September
If you're visiting Moss in September, expect highs of 18°C (64°F) and overnight lows around 9°C (48°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights fall to 9°C (48°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Moss in September
The city usually sees around 149 hours of sunlight, indicating a moderately sunny period.If you prefer enjoying temperate temperatures and rain-free days, June, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Norway, check out our Moss's climate page.
Moss Temperature in September
Min Temperature
9°C (48°F)
Max Temperature
18°C (64°F)
Chance of Rain
53%
Precipitation
93 mm (3.7 in)
Rainy days
16 days
Humidity
76% *
Sunshine
149 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Moss typically drop from around 18°C (64°F) at the start of September to approximately 14°C (57°F) by the end. Nights are cold, with lows typically ranging from 6°C (43°F) to 10°C (50°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Moss in September
Browse day-by-day weather records for Moss spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Moss historical weather extremes in September
According to our 49 years of weather records for Moss, the following extremes were recorded between 1976 and 2025.
- The warmest day in September was on September 6, 2024, with a maximum of 26°C (79°F).
- The lowest daytime temperature in September was 6°C (43°F), recorded on September 29, 1985.
- Nighttime temperatures dropped to -4°C (25°F) on September 18, 1993, marking the coldest September night on record.
- The wettest day in September Moss was on September 26, 2020 with 44 mm (1.7 in) of precipitation.
Best Places in Norway in September
Find out more about the weather in Norway and which places have the best travel conditions in this month. See all of Norway in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Moss in September
Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Moss in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Norway, check out our Moss's climate page.
Temperature Rainfall Sunshine Humidity
See the full Moss climate overview or explore weather in Norway.
